Advises That Program Descriptions Required by Generic Ltr (GL) 89-13, Svc Water Sys Problems Affecting Safety-Related Equipment & GL 89-10, Safety-Related Motor Operated Valve Testing & Surveillance, Available for NRC Review at Plant
05000361/LER-1999-004, Forwards LER 99-004-00 Re Automatic Tgis Actuation.Event Affected Units 2 & 3 Equally Because Tgis Is Shared Sys. Single Rept Is Being Provided for Unit 2 IAW NUREG-1022, Rev 1.No New Commitments Are Contained in Encl
ML20210N090
ML20210N505
ML20210P622
ML20210N972
ML20210P571
ML20210P468
ML13316A355
ML20210Q645
ML20211A950
ML13319B145
ML20210R668
ML20210V427
ML13319B146
ML20211H856
ML20211J582
ML13316A358
ML20211J715
ML20211H332
05000206/LER-1999-001, Forwards LER 99-001-00 for Occurrence Re Unattended Security Weapon Inside Protected Area.Single Rept for Unit 1 Is Being Submitted,Iaw NUREG-1022,Rev 1,since Condition Involves Shared Sys & Is Applicable to Units 1,2 & 3
ML20211N026
ML20211K419
ML13316A359
ML20217B901
ML20216E603
ML13316A361
ML20212A406
ML20212D992
05000361/LER-1999-005, Forwards 30-day follow-up LER 99-005-00,describing Loss of Physical Train Separation in Control Room.Any Actions Listed Intended to Ensure Continued Compliance with Existing Commitments
05000361/LER-1999-004, Forwards LER 99-004-00 Re Automatic Tgis Actuation.Event Affected Units 2 & 3 Equally Because Tgis Is Shared Sys. Single Rept Is Being Provided for Unit 2 IAW NUREG-1022, Rev 1.No New Commitments Are Contained in Encl
ML20210N505
ML20210P622
ML20210P468
ML20210P571
ML13316A355
ML20210Q645
ML13319B145
ML20210R668
ML20210V427
ML13316A358
05000206/LER-1999-001, Forwards LER 99-001-00 for Occurrence Re Unattended Security Weapon Inside Protected Area.Single Rept for Unit 1 Is Being Submitted,Iaw NUREG-1022,Rev 1,since Condition Involves Shared Sys & Is Applicable to Units 1,2 & 3
ML13316A359
ML20216E603
ML13316A361
ML20212A406
05000361/LER-1999-005, Forwards 30-day follow-up LER 99-005-00,describing Loss of Physical Train Separation in Control Room.Any Actions Listed Intended to Ensure Continued Compliance with Existing Commitments
Southern California Edison Company 23 PARKER STREET IRVINE, CALIFORNIA 92718 August 29, 1990 F. R. NANDY TELEPHONE MANAGER, NUCLEAR LICENSING (714) 587-5400 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Gentlemen:
Subject:
Docket Nos. 50-206, 50-361, and 50-362 Implementation Programs for Generic Letter 89-10: Motor Operated Valves Generic Letter 89-13:
Service Water Systems San Onofre Nuclear Generating Station Units 1, 2, and 3
References:
1. Supplement 1 to Generic Letter 89-10:
Results of Public Workshops, June 13, 1990
2. Supplement 2 to Generic Letter 89-10:
Availability of Program Description, August 3, 1990 The purpose of this letter is to notify the NRC that the program descriptions required by Generic Letter 89-13:
"Service Water System Problems Affecting Safety-Related Equipment" and by Generic Letter 89-10: "Safety-Related Motor Operated Valve Testing and Surveillance" are available for NRC review at San Onofre. Supplements 1 and 2 to Generic Letter 89-10 were issued in June and August of 1990, respectively. Southern California Edison is reevaluating our Generic Letter 89-10 program in response to these supplements, and a revised program document will be available for NRC review by January 1, 1991, consistent with the schedule requested by reference 2.
In our January 11, 1990 response to Generic Letter 89-10, we committed to perform a test at design basis conditions on at least one of each "like-kind" MOV. However, in light of NRC clarifications, we are increasing the scope of our MOV design basis testing program beyond the commitments in our January 11, 1990, letter. Design basis in-situ testing will be performed on all safety related MOVs which are practical to test except for non-position changeable safety related MOVs.
-2 Extensive efforts are underway within the industry to develop an acceptable alternative to costly and time consuming testing of MOVs at design basis in-situ conditions. Revisions may be made to our program in the future to make use of the results of these industry efforts. The two-stage approach described in Generic Letter 89-10 Recommended Action f. will be used where in-situ design basis testing is not practical.
Design basis testing will not be performed on non-safety related MOVs.
However, we are performing static diagnostic testing on all MOVs, including non-safety related MOVs, as part of our preventive maintenance program.
MOV testing at Units 1, 2, and 3 associated with Generic Letter 89-10 will start approximately August 1991, during the Cycle 6 refueling outage at Unit
2. We intend to complete all of the Generic Letter 89-10 required activities within the schedule identified in the Generic Letter.
If you have any questions or would like additional information, please let me know.
Sincerely, cc: J. B. Martin, Regional Administrator, NRC Region V C. W. Caldwell, NRC Senior Resident Inspector, San Onofre Units 1, 2, and 3 J. E. Tatum, NRC Project Manager, San Onofre Unit 1